Ab initio spin-phonon calculations show that direct one-phonon processes mediated by the flexural ZA acoustic branch drive the non-monotonic T1 relaxation of the hBN boron vacancy at high magnetic fields without fitting parameters.
7(a)-(e) we illustrate theab initiospin-phonon relaxation rates as a function of the magnetic field for temperature range of 30−250 K
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Acoustic-phonon-driven spin-lattice relaxation of the hBN boron vacancy in the sub-THz regime
Ab initio spin-phonon calculations show that direct one-phonon processes mediated by the flexural ZA acoustic branch drive the non-monotonic T1 relaxation of the hBN boron vacancy at high magnetic fields without fitting parameters.